Review: Cooler Master MasterLiquid 240 Atmos Cold. Liquid. Silence.

Cooler Master really are masters of pc cooling.

Cooler Master has long been a name synonymous with quality PC cooling and case solutions. Their dedication to innovation and performance has earned them a place of trust in the hearts of many PC enthusiasts. The Cooler Master MasterLiquid 240 Atmos is one of their latest offerings, and it aims to hit the sweet spot between aesthetics, functionality, and performance in the world of PC cooling. In this review, we’ll delve deep into this midrange CPU cooler and explore how it stacks up against the competition.

Design and Aesthetics

The Cooler Master 240 Atmos is, first and foremost, a liquid cooling solution, which means it is primarily focused on efficient heat dissipation. However, Cooler Master has not ignored aesthetics in the process. The 240 Atmos boasts an attractive and sleek design that will certainly enhance the visual appeal of your PC build.

One of the standout features of the 240 Atmos is its dual-chamber pump design. The pump unit has a transparent top with RGB lighting, which adds a touch of elegance to the overall look. The RGB lighting can be customized through Cooler Master’s software, allowing you to match it with the rest of your build. The pump is also very quiet, thanks to Cooler Master’s patented dual-chamber design, which helps reduce noise and vibration.

The radiator of the 240 Atmos is a standard 240mm size, making it compatible with most mid-tower and larger cases. It is made of aluminum, which not only enhances heat dissipation but also contributes to its durability. The fans come with translucent blades and customizable RGB lighting as well, completing the unified look.


The heart of any CPU cooler is its performance, and the Cooler Master 240 Atmos does not disappoint in this regard. It is a 240mm all-in-one liquid cooler, and as such, it offers excellent cooling performance for most mainstream processors. The 240mm radiator has two 120mm fans, which provide adequate airflow to dissipate heat effectively.

When it comes to cooling capacity, the 240 Atmos can handle a wide range of CPUs, including Intel’s LGA 1700 and AMD’s AM5 sockets. It can comfortably handle processors with TDPs (Thermal Design Power) of up to 240W, making it suitable for both gaming and content creation tasks. During our testing, it managed to keep our Intel Core i5-13400, in an ITX case, at a very cool temperature even while gaming.

The low noise levels of the Cooler Master 240 Atmos are another highlight. The included fans run quietly, thanks to their fluid dynamic bearings. Additionally, the pump’s dual-chamber design reduces vibrations and noise. This quiet operation makes the cooler an excellent choice for those who want to maintain a peaceful computing environment. Even during a longer gaming session, with the 240 Atmos 5 feet away from us, we didn’t notice noise at all. 


Installing the Cooler Master 240 Atmos is relatively straightforward, and Cooler Master includes clear instructions in the box. The cooler comes with a universal mounting kit that supports a wide range of CPU sockets, including Intel LGA 1700, 1200, AMD AM5 and AMD AM4. The bracket and backplate are sturdy, and they make the installation process hassle-free.

The included 120MM radiator fans come already attached to the radiator, speeding up the process. You do have to apply your own thermal paste, but the included paste and application sticker make it a breeze. The pump unit attaches securely to the CPU, and the radiator mounts fairly easily in the case with the provided screws.

The only minor hiccup we encountered during installation was the placement of the RGB cables, which can be somewhat finicky to route neatly. It may take a little extra time to achieve a clean and cable-managed appearance if you’re particularly meticulous about it. However, this is a minor issue compared to the overall ease of installation. The inclusion of a fan hub is nice to see, which offsets some of the struggle of managing RGB cables. 

Software and Customization

Cooler Master provides software for RGB control and fan speed adjustments. The software, known as Cooler Master MasterPlus, is user-friendly and intuitive. You can customize the RGB lighting on the pump and fans, choosing from various effects and colors to match your system’s aesthetic.

The software also allows you to adjust fan speeds based on your preferences. Whether you want maximum cooling performance or a near-silent operation, you can find the right balance by tweaking the fan curves. Additionally, the pump speed can be adjusted to further fine-tune the cooler’s performance to your liking.

One downside is that you need to connect the cooler to a USB header on your motherboard to access the software. While this is a minor inconvenience, it’s worth noting for those who have limited USB headers available.  

Build Quality

Cooler Master is known for its build quality, and the 240 Atmos lives up to this reputation. The construction of the cooler components is solid, and the materials used are durable. The aluminum radiator feels robust, and the tubing is flexible yet sturdy. The translucent blades on the fans are made of a decent quality plastic that doesn’t feel cheap.

The pump unit is also well-built, with the transparent top adding a touch of elegance to the overall design. The RGB lighting on both the pump and fans is well-integrated and provides a polished look. During our testing, the cooler showed no signs of leakage or malfunction, demonstrating its reliability.

Price and Value

The Cooler Master 240 Atmos is competitively priced for a 240mm AIO cooler, making it a solid choice for budget-conscious builders looking for a good balance between performance and aesthetics. The cooler’s performance, build quality, and customization options are impressive for its price point, making it a compelling option for both gaming and content creation PCs.

Compared to some higher-end AIO coolers on the market, the 240 Atmos seems to keep up pretty well. It’s more than capable of handling the cooling needs of most processors while adding a touch of style to your PC build. 


The Cooler Master MasterLiquid 240 Atmos is a midrange masterpiece in the world of AIO CPU coolers. It offers an attractive design, efficient cooling performance, quiet operation, and customizable RGB lighting, all at a really competitive price point of $139.99. Its build quality and ease of installation further contribute to its appeal.

While it may not be the absolute best choice for extreme overclocking or highly demanding workloads, it handles mainstream processors with ease and style. Cooler Master has successfully created a balanced product that caters to a wide range of users, making the 240 Atmos an excellent choice for those seeking both aesthetics and performance in their PC cooling solution.

Check out the MasterLiquid 240 Atmos here.

About Author
Carson Wells is a writer that specializes in all things computers and technology. He enjoys breaking a product down logically and allowing his readers to make their choice based on the facts presented.